So the manual there's outdated. When it is updated, farbwerk will appear on that table, and will have in the max column, 2 (bus range). Makes a bit more sense now and thx for piecing the puzzle together for me. o/

Thanks for your response bud. Yer, I've been researching away here prior to posting and dug up the stuff regarding 2 farbwerks on 1 controller. What it did say was that you can have a max of 2 farbwerks on 1 aquaero, hence my question if having added 2 on, does it therefore prevent any further aquabus devices being chained. This lack of clarity is what prompted my post.

Hi I'm in the process of a new build but before I commit to the items I have in mind I thought I'd ask here if they'll be compatible. What I plan to use is 1 x Aquaero 5, 2 x farbwerk and 1 x poweradjust to control the lighting and fans, plus a PWM D5 pump and your high flow meter. Will this lot all interlink or will I have to drop one of the farbwerk controllers? Kind regards, Jim